The series follows a group of students who gather for school detention on a Saturday at Kent High. Other students are on campus as well, but involved in various activities (basketball, debate prep, music, etc.). When a nearby chemical plant explodes, they must work together to find a way to survive with only limited resources and protect themselves from those who have turned into freakish zombie-like creatures as a result of the fallout.

Freakish Season 2 will be released on Hulu before the end of the year.